//header file to contain function of dot product in 1,2,3 dimensional spaces
//example of default function

#ifndef __DOTPRODUCT__
#define __DOTPRODUCT__

double dotp2(double x1, double y1, double x2,double y2);
double dotp3(double x1, double y1, double x2,double y2, double x3, double  y3);

#endif
